package sctu.edu.java.year2016.team06.luoxin.day20160621;

/**
 * Created by Administrator on 2016/6/21.
 */
public class Test {
    public static void main(String[] args) {
        int num=999;
        int count =0;
        if(num>=0 && num<=9999){
            while(num != 0){
                count ++;
                num/=10;
            }
            System.out.println("它是个"+count+"位的数！");
        }else{
            System.out.println("输入有误！");
        }
    }
}
